Epi–Efate Islanders (c.1520–1950 CE)

The human presence on Epi and Efate is the visible endpoint of millennia of oceanic voyaging and island settlement. For these samples—recovered from Wam Bay (Epi Island) and multiple sites on Efate (Banana Bay, Pango Village, Ifira, Pangpang) and dated between 1520 and 1950 CE—archaeological context links living villages, horticultural plots, and coastal middens rather than large monumental architecture. Archaeological data indicates continuity of local material traditions long after the initial Lapita arrival to Vanuatu (earlier millennia), with changes in artifact styles, gardening practices, and contact goods visible in late pre‑colonial and colonial deposits.

Limited evidence from these sites shows that communities maintained dense cultural knowledge of canoe navigation, yam and taro cultivation, and reef fisheries. Ethnographic and historical sources describe multilayered exchange networks among islands of central Vanuatu; the skeletal and burial contexts associated with the sampled individuals are consistent with small village cemeteries or isolated interments. Because the radiocarbon span covers both pre‑contact and colonial periods, some archaeological signatures—iron trade goods, glass beads—may reflect changing lifeways after first European sightings. Overall, the archaeological record frames these individuals as participants in enduring island lifeways shaped by repeated contact, environmental management, and resilient social structures. Given the small number of genetic samples, conclusions about populationwide origins remain tentative.

Six ancient individuals from Epi and Efate provide a narrow but revealing genetic window into late pre‑colonial and colonial Vanuatu. Mitochondrial DNA is dominated by haplogroup B (3 of 6), with single occurrences of M, P2, and P. Haplogroup B (especially B4a lineages) is widely associated with the Austronesian expansion across the Pacific and often marks maternal ancestry tied to island‑hopping voyagers. The presence of P and P2 (haplogroups rooted in Near Oceania) and M (a diverse Eurasian/Melanesian lineage) signals persistence of local maternal lineages in the archipelago.

On the paternal side, Y‑DNA shows two individuals assigned to haplogroup O, typically associated with Austronesian‑language populations; one S and one M, both more common in Melanesia or Papuan contexts. This mixed paternal signal suggests heterogeneous male ancestry—some lineages reflecting Austronesian male input and others representing Papuan/Melanesian continuity. Archaeological patterns of exchange and interisland marriage can produce exactly this mosaic of maternal and paternal signatures.

Crucially, the sample count is low (n = 6). With fewer than ten individuals, population‑level inferences are preliminary and subject to sampling bias. Archaeogenetic interpretations should therefore be framed as provisional: the data aligns with broader models of Austronesian maternal influence combined with substantial Papuan/Melanesian ancestry in Vanuatu, but more samples across time and islands are required to resolve fine‑scale demographic transitions.